144434-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144434-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,4,3 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144434-89:
(8*1)+(7*4)+(6*4)+(5*4)+(4*3)+(3*4)+(2*8)+(1*9)=129
129 % 10 = 9
So 144434-89-9 is a valid CAS Registry Number.
144434-89-9Relevant academic research and scientific papers
Synthesis of 2-acylamino-1,2-dihydropyrrolizin-3-ones from pyrrole
Gilchrist, Thomas L.,Lemos, Americo
, p. 7655 - 7662 (2007/10/02)
The pyrrolizidin-3-ones 5, 7 and 10 have been prepared from pyrrole by making use of its reaction with ethyl bromopyruvate oxime in the presence of sodium carbonate to introduce the side chain. The 5-substituents were introduced into the pyrrole ester 2 b
